impala-ruby AuthorizationException

I am trying to connect a ruby application to Impala and I am having the following issues.

Can connect and can run the commands "SHOW DATABASES", "SHOW CURRENT ROLES" but no other commands will run successfully.

Versions Used:
impala-ruby 0.5.1 and all dependencies
Impala 2.9 on CDH 5.12

Example use case:

conn = Impala.connect('HOST_NAME', 21000, {sasl: {:username=>"username", :password=>"password"}})

conn.query("SELECT * from ")

Error:

, errorCode:0, SQLState:"42000">

I have Sentry enabled but privileges are set correctly and I am able to connect and runs commands using the impala-shell, Hue and the Impala Python library impyla. Kerberos is not enabled.

Thanks

Start by reproducing the reported conn.query SELECT with impala-ruby 0.5.1, Impala 2.9 on CDH 5.12, Sentry enabled, and the shown SASL credentials. Compare the authorization behavior with impala-shell, Hue, and impyla; done means identifying and documenting why the Ruby client receives [PLAIN] and correcting or clearly isolating that behavior.

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